Thornless Honey Locust (gleditsia triacanthos inermis)

Thornless Honey Locust (gleditsia triacanthos inermis)

60-80cm
£2.88
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Thornless Honey Locust (gleditsia triacanthos inermis)

Thornless Honey Locust (gleditsia triacanthos inermis)

£2.88
Height60-80cm
  • Large, spreading deciduous tree (typically 15–20 m+ tall) with elegant, fine-textured pinnate foliage that casts light, dappled shade.
  • Thornless (safer for gardens and public spaces), glossy green leaves turning bright yellow in autumn.
  • Fast-growing, highly adaptable, and tough: tolerates a wide range of soils (including clay, chalk, alkaline), urban pollution, drought (once established), heat, and some salt. Fully hardy in the UK. 
  • Low-maintenance specimen tree; good for lawns, parks, or larger gardens where filtered shade is wanted underneath.
Planting advice
  • Timing: November to March (dormant season). Best in milder weather; avoid frozen or waterlogged ground.
  • Site: Full sun; any well-drained soil (moist but free-draining preferred). Allow space for mature size (spread often 8 m+).
  • On arrival: Keep roots moist. Plant promptly or heel in temporarily. 
  • Planting steps:
    • Dig a hole no deeper than the roots but 2–3 times wider; loosen sides if compacted.
    • Position so the root collar / soil mark sits at or slightly above ground level (never plant too deep). Spread roots out.
    • Backfill with excavated soil (mix in some compost if poor); firm gently.
    • Water thoroughly to settle soil.
    • Stake if needed (especially in exposed sites) and use a rabbit/deer guard.
    • Mulch 5–8 cm deep around the base (keep clear of the trunk).
  • Aftercare: Water regularly in the first 1–2 growing seasons during dry spells. Keep the base weed-free. Minimal pruning required (remove dead/damaged wood.
Once established it is resilient and largely trouble-free.
Photo credit: Laval University, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons (cropped)

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